54420891 has 8 divisors (see below), whose sum is σ = 82927104. Its totient is φ = 31097640.

The previous prime is 54420889. The next prime is 54420901. The reversal of 54420891 is 19802445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54420891 - 2¹ = 54420889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54420811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295715 + ... + 1295756.

It is an arithmetic number, because the mean of its divisors is an integer number (10365888).

Almost surely, 2^54420891 is an apocalyptic number.

54420891 is a deficient number, since it is larger than the sum of its proper divisors (28506213).

54420891 is a wasteful number, since it uses less digits than its factorization.

54420891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591481.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 54420891 is about 7377.0516468302. The cubic root of 54420891 is about 378.9557920510.

The spelling of 54420891 in words is "fifty-four million, four hundred twenty thousand, eight hundred ninety-one".